Sig P365 vs Glock 43: Comparing Concealability and Firepower

Choosing the ideal firearm for concealed carry requires careful thought and comparison. The Sig Sauer P365 and Glock 43 are both reputable guns that have garnered attention in the concealed carry community for their design, reliability, and overall performance. These compact firearms are engineered to strike a delicate balance between ease of concealment and shootability. A thorough examination and comparison of these two models reveal insights into their functionality and suitability for different types of users.

While the Glock 43 has been a longstanding choice for those prioritizing lightweight and slim profiles, the Sig Sauer P365 has introduced a notable innovation in its high-capacity magazine within a similar footprint. Ergonomics, ease of use, and accessory availability also play significant roles in determining which pistol may suit an individual's specific needs and preferences. The intended use, be it everyday carry, home defense, or as a backup weapon, can influence the choice between these two contenders.

Key Takeaways

  • The Sig Sauer P365 and Glock 43 are highly regarded concealed carry options.
  • Detailed comparisons highlight size, capacity, ergonomics, and accessory compatibility differences.
  • Cost and personal preference based on intended use are essential factors when choosing between the two firearms.

Overview of Sig Sauer P365 and Glock 43

The Sig Sauer P365 and Glock 43 epitomize the evolution of concealed carry handguns. Both are designed to offer a balance between concealability and firepower for self-defense.

Background and Evolution

The Sig Sauer P365 was introduced in 2018 and represented a significant leap in the subcompact handgun category. It gained rapid popularity due to its increased magazine capacity of up to 10 rounds of 9mm ammunition in a very compact form factor—a noteworthy feat for a firearm of this size.

On the other hand, the Glock 43 made its debut in 2015 and quickly became favored by concealed carry proponents. This pistol is a part of Glock’s renowned lineup, incorporating their trademark reliability and simplicity into a slim, single-stack design suited for discreet carry.

Design Philosophy

Sig Sauer's design philosophy for the P365 focused on maximizing capacity without sacrificing ergonomics or handling. It features:

  • Caliber: 9mm Luger
  • Length: 5.8 inches
  • Height: 4.3 inches
  • Barrel Length: 3.1 inches

Glock aimed for a straightforward, reliable tool for personal defense with the G43, which offers:

  • Caliber: 9mm Luger
  • Length: 6.2 inches
  • Height: 4.25 inches
  • Barrel Length: 3.39 inches

These handguns reveal the manufacturers' understanding of the concealed carry market's demands, catering to users who prioritize ease of carry and dependability.

Design and Ergonomics

When comparing the SIG Sauer P365 and the Glock G43, design intricacies are crucial, particularly in size, grip, and overall handling experience.

Size and Dimensions

The SIG Sauer P365 boasts compact dimensions yet high capacity. Its overall length is 5.8 inches, coupled with a height of 4.3 inches, including the standard magazine. The width of the P365 is an impressively slim 1 inch. In contrast, the Glock G43 is slightly longer at 6.26 inches and has a height that allows for a comfortable grip, though exact measurements are not universally reported. Glock's width is a tad broader at 1.02 inches.

  • SIG Sauer P365:

    • Length: 5.8 inches
    • Height: 4.3 inches
    • Width: 1 inch
  • Glock G43:

    • Length: 6.26 inches
    • Height: Not Specified
    • Width: 1.02 inches

Grip and Texture

The grip of the P365 is designed to provide a secure hold. It features aggressive texturing on the sides, stippling, and a deep undercut beneath the trigger guard, which can be enhanced with optional grip tape. Its design accommodates a natural hand position with recess grooves for improved control. The Glock G43 also features a textured grip with built-in finger grooves and a beavertail design to prevent slide bite, optimizing hand placement for a firm, controlled grip.

  • SIG Sauer P365: Aggressive texturing, optional grip tape, recess grooves
  • Glock G43: Textured grip, finger grooves, beavertail design

Weight and Balance

Weighing 17.8 ounces when unloaded, the Glock G43 offers a slight edge in weight over the P365, making it more attractive to users who prioritize lighter carry. However, the difference is minimal, with the SIG P365 having an unloaded weight of approximately 18 ounces. Both firearms are designed to balance weight and capacity, providing a comfortable carry without sacrificing performance.

  • SIG Sauer P365: ~18 ounces (unloaded)
  • Glock G43: 17.8 ounces (unloaded)

Overall Aesthetics

The aesthetic appeal of a handgun is often subjective, but both the P365 and the Glock G43 feature modern designs that are aesthetically pleasing and practical. The P365 is recognized for its sleek contours and minimalistic approach, while the Glock G43 maintains the classic Glock look with its clean lines and functional design. Personal preference will dictate the perceived beauty of each model's aesthetics.


The Glock 43 and Sig Sauer P365 are highly regarded firearms in the subcompact category. Potential owners should consider their respective performance metrics in accuracy and precision, reliability, magazine capacity, and trigger mechanism when comparing the two models.

Accuracy and Precision

The Sig P365 boasts a barrel length of 3.1 inches and is designed for consistent shot placement. Users often report it as exceptionally accurate right out of the box, even at extended ranges up to 25 yards. The Glock 43, with a slightly longer barrel of 3.4 inches, maintains the Glock brand's reputation for accuracy. However, the difference in barrel length between the two is minimal and, therefore, has little impact on their respective accuracy and precision in the hands of trained shooters.


The Glock 43 and the Sig P365 have proven to be highly reliable firearms. Glock's long-standing reputation for reliability remains intact with the G43, with users reporting few functional issues even after extensive use. The P365, despite some reported problems early in its release, has since undergone revisions and improvements, leading to an enhanced track record of reliability. Practically, both handguns demonstrate dependability with routine maintenance.

Magazine and Capacity

One of the most significant differences between these two subcompact handguns is their magazine capacity. The Sig P365 is designed to carry significantly more rounds, offering magazine options that hold 10, 12, or 15 rounds. The Glock 43, in comparison, typically provides a 6-round magazine capacity. For individuals where capacity is a deciding factor, the Sig P365 holds a clear advantage.

Magazine Capacity Comparison:

  • Sig P365: 10, 12, or 15 rounds
  • Glock 43: 6 rounds

Trigger Mechanism

The trigger on the Sig P365 features a smooth, consistent pull with a clean break, which many users describe as one of the best in its class for a stock subcompact pistol. The Glock 43 upholds Glock's classic safe action trigger system, known for its consistent performance, but some shooters consider it to have a heavier pull than the P365. Trigger preference can be subjective, but both firearms offer manageable and reliable trigger mechanisms suited for their intended use in concealed carry and personal defense situations.

Features and Accessories

When comparing the SIG Sauer P365 and the Glock G43, a key area of focus is the range of available features and accessories for each model that enhance functionality and user experience.

Sights and Optics

The SIG P365 comes standard with X-RAY3 Day/Night Sights, which include a bright green ring and tritium vials for excellent low-light visibility. Additionally, the P365 is optics-ready, allowing for the installation of various red-dot sights. In contrast, the Glock G43 is typically equipped with standard Glock sights, though it does have options for aftermarket night sights, including those with tritium for better visibility in the dark.

Safety Features

The P365 and the G43 have their safety mechanisms engineered with concealed carry in mind. The P365 features a striker-fired design with no external safety lever, relying on internal safety features such as a firing pin safety. The G43 also eschews an external safety lever, offering a safe action system composed of multiple internal safeties and a blade safety embedded within the trigger.

Magazine Extensions and Parts

Out of the box, the P365 boasts a higher capacity, which can be further expanded with SIG’s magazine extensions. Likewise, aftermarket magazine extensions can upgrade the Glock G43's capacity. Both pistols have a wide range of parts available, including extended magazine releases and slide serrations to aid in the ease of operation.

Aftermarket Support

The G43 and P365 enjoy robust aftermarket support. SIG and Glock owners can explore many accessories, from enhanced trigger guards to custom parts designed to personalize and improve their shooting experience. Given their popularity, third-party manufacturers offer many options, such as improved triggers and customized grip modules for the P365 and slide upgrades and grips for the G43.

Concealment Factors

When choosing a concealed carry pistol, the Glock 43 and Sig Sauer P365 are closely matched in concealability, comfort, and practical application. Each has features that appeal to different users based on their specific needs for everyday carry.

Concealability Comparison

The Sig Sauer P365 and Glock 43 exhibit different dimensions that impact their concealability. The P365 is noted for its slight edge in compactness, being slightly shorter in overall length compared to the Glock 43:

  • Sig Sauer P365: Height - 4.3 inches; Length - 5.8 inches
  • Glock 43: Height - 4.25 inches; Length - 6.26 inches

These measurements contribute to the ease with which each pistol can be hidden on a person's body, with the P365 often being seen as marginally more straightforward to conceal due to its reduced length.

Comfort While Carrying

Comfort is subjective but hinges mainly on the size and weight of the concealed carry pistol. The Glock 43 weighs an unloaded 17.99 ounces, which some carriers find strikes a balance between feeling secure but not overly heavy. The P365, while slightly heavier, provides a polymer magazine that contributes to its manageable carry weight, resulting in both pistols offering comfort for everyday carry when appropriately holstered.

Comfort may also be influenced by a pistol's design features, including stippling, ergonomic grips, and ambidextrous controls, which may affect how the gun rests against the body.

Concealed Carry Use Cases

The choice between the Sig Sauer P365 and Glock 43 for concealed carry can be influenced by common use cases:

  • Daily Commute: Smaller pistols like the P365 are often preferred for their ease of concealment in various clothing...
  • Extended Wear: Users who carry for long durations may favor the Glock 43 due to its lightweight nature, which reduces fatigue and maintains comfort.
  • Self-Defense Preparedness: The P365's higher magazine capacity offers an advantage for those prioritizing ammunition availability without carrying additional polymer magazines.

Each pistol serves the concealed carry market with attributes catering to personalized needs and preferences, confirming their status as reliable concealed carry options.

Comparisons and Choices

In this decisive section, readers will find a measured examination of the Sig Sauer P365 and the Glock 43. An unbiased comparison of their specifications lays the groundwork for informed decision-making, followed by an appraisal of their advantages and shortcomings.

Direct Comparison of Specifications

The Sig Sauer P365 and the Glock 43 are striker-fired, subcompact handguns chambered in 9mm Luger. When choosing between the two, specific metrics can be pivotal:


Sig Sauer P365

Glock 43

Glock 43X

Overall Length

5.8 inches

6.2 inches

6.5 inches


4.3 inches

4.25 inches

5.04 inches

Barrel Length

3.1 inches

3.39 inches

3.41 inches


1 inch

1.06 inches

1.10 inches

Weight (Unloaded)

17.8 oz

17.99 oz

18.7 oz

Magazine Capacity

Ten rounds (standard)

Six rounds

Ten rounds

This table reflects the nuances in dimensions and weight, which may influence a buyer’s preference, considering concealability, comfort, and capacity. It does not account for price differences, which can fluctuate based on the market and specific model variations.

Pros and Cons

Every handgun has its highlights and limitations, which must be judged against the user’s needs:

Sig Sauer P365:

  • Pros:

    • High magazine capacity provides significant firepower for a subcompact model.
    • Compact dimensions aid in concealability without compromising on grip size.
  • Cons:

    • The higher price point may deter budget-conscious individuals.
    • Some shooters may find the recoil snappier than hammer-fired pistols.

Glock 43:

  • Pros:

    • Their reputation for reliability is a cornerstone of the Glock brand.
    • The slightly longer barrel may contribute to better bullet velocity and accuracy.
  • Cons:

    • Lower standard magazine capacity might require carrying additional magazines.
    • The wide body might be less comfortable for individuals with smaller hands than other models, such as the Glock 43X.

While not the primary focus, the Glock 43X offers an alternate choice with enhanced height and magazine capacity that might better suit specific users' preferences. Choosing between these handguns involves careful consideration of the trade-offs presented by each model's design and capabilities.

Cost Considerations

When choosing between the Sig Sauer P365 and the Glock 43, the buyer must consider the initial price, overall value, and potential long-term costs associated with ownership.

Price Comparison

The Sig Sauer P365 typically retails at a higher price point, with prices generally starting around $599. In contrast, the Glock 43 is often cheaper, ranging between $400 to $500. This difference in retail pricing can be a significant factor for individuals on a strict budget.


Average Price

Sig Sauer P365


Glock 43


Value for Money

Although the P365 has a higher initial cost, it may offer a better value for some buyers given its higher magazine capacity and features that may be considered upgrades on the Glock 43. On the other hand, the Glock 43's lower price point makes it a viable option for those seeking a reliable firearm without additional features.

Long-Term Costs

Potential additional expenses should be considered over the course of ownership. Upgrades and accessories for the Glock 43 might lead to increased expenditures, narrowing the initial cost gap between the two handguns. Ammunition, maintenance, and any necessary parts replacement are also cost factors that a buyer should factor in for both models.

Conclusion and Recommendations

When comparing the Sig Sauer P365 and the Glock 43, purchasers should assess their personal needs and preferences. Both firearms are reputable choices, embraced by the National Rifle Association (NRA) and firearm enthusiasts alike for their reliability.

  • Sig Sauer P365:

    • Capacity: Superior with options of 10+1, 12+1, or 15+1 rounds.
    • Size: Marginally smaller than the Glock, which may benefit concealment.
    • Recoil: Some may find the P365's recoil more manageable due to its design.
  • Glock 43:

    • Capacity: Standard 6+1 rounds, which may be a limitation for some users.
    • Aftermarket: Extensive aftermarket support allows for customization.
    • Recoil: Its slightly heavier frame can aid in recoil management for particular shooters.

Individuals seeking a higher-capacity magazine may lean towards the Sig Sauer P365, whereas those prioritizing aftermarket customization and potentially a different recoil experience prefer the Glock 43. Both pistols have a solid construction and offer unique advantages, making them leaders in the subcompact market segment.

A knowledgeable decision will factor in the potential need for accessories, comfort in handling recoil, and desired magazine capacity. Essentially, either choice would be an asset to a shooter's collection, complementing their armory with proven performance.

Frequently Asked Questions

The Sig P365 and Glock 43 are two popular concealed carry choices, and they are discussed in discussions about size, reliability, and features. Here are some specific questions and answers to help differentiate the two models.

What are the main differences in size between the Sig P365 and the Glock 43?

The Sig P365 sports a marginally smaller profile with a slightly taller height than the Glock 43. The P365 offers a more efficient use of space with a higher round capacity within comparable dimensions.

How does the accuracy of the Sig P365 compare to that of the Glock 43?

The Sig P365 typically comes with XRAY3 Day/Night Sights, which may provide an edge in low-light conditions and enhance accuracy. The Glock 43 tends to be equipped with more basic fixed sights.

Can the Sig P365 be considered as reliable as Glock models?

The Sig P365 is reported to be reliable and is a strong competitor to Glock models, which are renowned for their dependability. Both are reputable and have proven track records in concealed carry.

What are users on Reddit saying about the Sig P365 compared to the Glock 43?

Users on Reddit often discuss the P365's higher capacity and potentially smoother trigger compared to the Glock 43, but opinions on preferences are as varied as the users themselves.

How do the Sig P365 and Glock 43X differ in size and handling?

The Sig P365 and the Glock 43X have nearly identical widths, with the P365 being one inch wide at the grip and the Glock 43X at 1.02 inches, translating into subtle differences in handling and comfort.

Which has better features for concealed carry, the Sig P365 or the Glock 43?

While both pistols are designed for concealed carry, the Sig P365 generally offers a higher capacity and better standard sights, which may translate to better functionality for some users. However, the Glock 43's lighter weight could be a determining factor for others.

Back to blog